package com.xianyu.us.common.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.sql.DataSource;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

/**
 * druid连接监控配置
 * @author wangshili
 *
 */
@Configuration
public class DruidConfig {

    @ConfigurationProperties(prefix = "spring.datasource")//配置前缀，因为它是属于spring.datasource.
    @Bean
    public DataSource druid(){
        return  new DruidDataSource();
    }

    //配置Druid的监控
    //1、配置一个管理后台的Servlet
    @Bean
    public ServletRegistrationBean<StatViewServlet> statViewServlet(){
        ServletRegistrationBean<StatViewServlet> bean = 
        		new ServletRegistrationBean<StatViewServlet>(new StatViewServlet(), "/druid/*");
        Map<String,String> initParams = new HashMap<>();
        //访问/druid就可以进入后台
        initParams.put("loginUsername","admin");//监控后台用户名
        initParams.put("loginPassword","123456");//监控后台密码
        initParams.put("allow","");//默认就是允许所有访问，允许登录的
//        initParams.put("deny","192.168.15.21");//拦截指定地址

        bean.setInitParameters(initParams);
        return bean;
    }


    //2、配置一个web监控的filter
    @Bean
    public FilterRegistrationBean<WebStatFilter> webStatFilter(){
        FilterRegistrationBean<WebStatFilter> bean = new FilterRegistrationBean<WebStatFilter>();
        bean.setFilter(new WebStatFilter());

        Map<String,String> initParams = new HashMap<>();
        initParams.put("exclusions","*.js,*.css,/druid/*");//排除这些路径

        bean.setInitParameters(initParams);

        bean.setUrlPatterns(Arrays.asList("/*"));

        return  bean;
    }
}
